| /* struct ipc_perm definition. |
| Copyright (C) 2019-2020 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef _SYS_IPC_H |
| # error "Never use <bits/ipc-perm.h> directly; include <sys/ipc.h> instead." |
| #endif |
| |
| /* Data structure used to pass permission information to IPC operations. |
| It follows the kernel ipc64_perm size so the syscall can be made directly |
| without temporary buffer copy. However, since glibc defines the MODE |
| field as mode_t per POSIX definition (BZ#18231), it omits the __PAD1 field |
| (since glibc does not export mode_t as 16-bit for any architecture). */ |
| struct ipc_perm |
| { |
| __key_t __key; /* Key. */ |
| __uid_t uid; /* Owner's user ID. */ |
| __gid_t gid; /* Owner's group ID. */ |
| __uid_t cuid; /* Creator's user ID. */ |
| __gid_t cgid; /* Creator's group ID. */ |
| __mode_t mode; /* Read/write permission. */ |
| unsigned short int __seq; /* Sequence number. */ |
| unsigned short int __pad2; |
| __syscall_ulong_t __glibc_reserved1; |
| __syscall_ulong_t __glibc_reserved2; |
| }; |
